323111220444 has 18 divisors (see below), whose sum is σ = 816753362880. Its totient is φ = 107703740136.

The previous prime is 323111220437. The next prime is 323111220461. The reversal of 323111220444 is 444022111323.

323111220444 is a `hidden beast` number, since 323 + 111 + 220 + 4 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×323111220444² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4487655804 + ... + 4487655875.

Almost surely, 2^323111220444 is an apocalyptic number.

It is an amenable number.

323111220444 is an abundant number, since it is smaller than the sum of its proper divisors (493642142436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

323111220444 is a wasteful number, since it uses less digits than its factorization.

323111220444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8975311689 (or 8975311684 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 323111220444 its reverse (444022111323), we get a palindrome (767133331767).

The spelling of 323111220444 in words is "three hundred twenty-three billion, one hundred eleven million, two hundred twenty thousand, four hundred forty-four".